wordpress help

I'm hoping someone can help me. I have a wordpress blog on my site and I changed the directory name before changing it in my wordpress admin. I followed all the steps on wordpress support - I changed the wp-config.php, functions.php, and the url in the database. I even deleted the blog and re-uploaded it. Nothing worked. When I type in my url, it takes me back to the homepage of my site. Any advice is greatly appreciated.

No, sorry for the confusion. I have a website, and blog at this url: my-site.com/blog. When I log into wp-login, it redirects me back to my-site.com, but the url in the address bar still reads my-site.com/blog. When I go directly to the url my-site.com/blog, it stays on my-site.com, but the address bar still reads what I typed in. I hope this is clear.